baber/WOPTO huggingface dataset:
Patent GB-255178-A (GB)
Title: Improvements in telegraph transmitters
IPC: H04L15/18
Filed: 1925-05-01
Abstract: 255,178. Western Electric Co., Ltd., (Western Electric Co., Inc.). May 1, 1925. Perforated strip transmitters, - In a highspeed transmitter in which perforations in the tape control the positioning of a series of selecting members which control a series of contacts determining the subsequent transmission of currents to line, the selecting members, which are depressed by imperforate portions of the tape, are only moved initially by the tape, their movements being completed by power means operating independently of the tape. In the arrangement described, the hub 7 of a continuously driven drum has sixty-four slots, each having a U-shaped member 10 supporting a pair of levers 14, 15 connected by a spring 38. A corresponding series of sixty-four springs 29 controlled by the levers 15 move between contacts 26, 27 and are connected alternately to thirtytwo segments of the commutators 32, 34 as shown in Fig. 3. The projections on the ends of the levers 14, normally entered through pairs of holes 19, 20 in the drum 17 over which the perforated tape passes, thus maintaining the levers 14, 15 in the position shown in Fig. 4, and causing the springs 29 to engage the contacts 27. When the projection on a lever 14 engages an imperforate portion of the tape, which is fed tangentially to the drum 17 under a grooved pressure roller 44, the lever 14 is moved counter-clockwise the upper end of the lever 14 entering a bevelled notch 37 in the lever 15. which is moved to the left causing its spring 29 to engage contacts 26. The levers 14, 15 are locked in the position shown in Fig. 1 by the spring 38 until after the transmission of the line current, when they are re-set. The line or cable 66 is connected to a brush 65 engaging a commutator ring, alternate segments of which are intereonnected and engaged by brushes 60, 62 mounted on a bar 61 which can be adjusted during working to vary the curbing. In the system described, the code elements are represented by single holes on opposite sides of the tape. so that each pair of springs 29, 29<1>, Fig. 3, will engage opposite contacts such as 26, 27<1>, With the springs in the position shown, the cable 66 is connected through brush 65, segments 69, 67, brushes 60, 59, spring 29, contact 26, ring 24. brush 54 to battery 56 and thence via contact 27<1>, spring 29'. and brush 58 to earth. The battery 56 is connected to line in the opposite direction if the position of the springs 29, 29<1> is reversed. Curbing is effected by earthing the cable over brushes 65, 62 after a time determined by the setting of these brushes.
Patent GB-772772-A (GB)
Title: Vent valve for gas or liquid storage container
IPC: F16K17/19
Filed: 1955-04-20
Abstract: 772,772. Relief valves. WIGGINS, J. H. April 20, 1955, No. 11426/55. Class 135.. A combined pressure and vacuum relief valve for use on a tank comprises a vent 10 mounted on the tank 11 and connected by a flexible pipe B to a bellows A having a fixed upper plate 1 and a movable lower plate 2. The plate 2 is connected to a lever E which carries a valve palate 16 controlling the vent 10, a weight W and pins 18, 19 engageable with fulcra 9, 8 respectively disposed as shown. With zero gas pressure in the tank and hence in the bellows, the palate 16 under its own weight and the effect of the weight W seats on the vent 10 and the lever pivots about the fulcrum 9. Initially on an increase in pressure in the tank the palate 16 seats more firmly on the vent 10, the reaction on the fulcrum 9 gradually decreasing until the lever pivots about the palate. On a further increase in pressure the lever rotates clockwise until the pin 19 is engaged by the fulcrum 8 until eventually the moments due to the pressures acting in the bellows A and on the palate 16 about the fulcrum 8 overcome the moment of the weight W to unseat the palate. On the pressure in the tank being less than zero the bellows contracts to press the lever more firmly on the fulcrum 9 until at a predetermined minimum pressure the palate is again unseated.
Patent GB-1217774-A (GB)
Title: Substituted phenylcarbamic acid esters of cyclic amino alcohols and process for their preparation
IPC: C07D211/42
Filed: 1968-03-08
Abstract: 1,217,774. Esters of phenylcarbamic acids. ASTRA. A.B. 8 March, 1968 [9 March, 1967], No. 11449/69. Heading C2C. [Also in Division A5] Novel carbamic acid esters of the formula wherein R is C 1-5  and R 1  is H, C 1-5  alkyl or halogen and therapeutically acceptable acid addition salts thereof are prepared by reacting together compounds of the formulµ where X and Y are groups capable of reacting with each other to form an -NH-CO-O- bridge between the two rings. In examples, when Y is OH X is NCO, -NHCO-O- alkyl, or -NHCOCl, and when Y is 0-COCl X is NH 2 . 2,6 - Dimethylphenyl carbamic acid chloride is made by adding 2,6-dimethylaniline and pyridine to a solution of phosgene in toluene N - n - Propyl - 3 - hydroxypyridine chlorocarbonic acid ester hydrochloride is obtained by treating a solution of N-n.propyl-3-hydroxypiperidine with phosgene.
Patent GB-1463646-A (GB)
Title: Diaphragm arrangement for pneumatic or hydraulic amplifiers
IPC: F15C3/04
Filed: 1975-03-19
Abstract: 1463646 Valves FR SAUTER AG 19 March 1975 [20 March 1974] 11463/75 Heading F2V In a valve responsive to the individual pressures on each side of two diaphragms 29 operating in chambers formed between intermediate discs 20, 21, a cover plate 27 and connection plate 28, each diaphragm consists of an inner rigid plate 39 of metal (aluminium, brass, steel, copper and their alloys) or plastics (polyvinyl, polyurethane, polycarbonate) and an outer annulus 40 of the same material covered by an elastomeric layer 43 of neoprene, rubber or silicone rubber which bridges the gap 41. Holes around the periphery of the outer annulus serve either as holes for fixing bolts 30 or as fluid passageways which connect with the chambers via radial grooves 36 on the face of the intermediate discs. A control plunger 34 and spacer 35 are sealed to the intermediate discs by sealing diaphragms 38 of small surface area.
Patent GB-1421435-A (GB)
Title: Pneumatic tyres
IPC: B60C15/06
Filed: 1973-03-09
Abstract: 1421435 Pneumatic tyres MICHELIN & CIE (COMPAGNIE GENERALE DES ETABS MICHELIN) 9 March 1973 [9 March 1972] 11534/73 Heading B7C A pneumatic tyre has at least one carcass reinforcing ply 10 of radially extending cords which are turned up around a single beadwire assembly 20 in each bead 1 and extend back up the bead 1 to a point 11, and a stiffener 30 in each bead consisting of at least two layers of steel cords and extending between a point situated higher than the ends of the carcass reinforcing cords and a point situated lower than the beadwire assembly 30, the cords of the stiffener layers in each bead being oriented to cross each other. As shown the single carcass reinforcing ply 10 is formed of steel wires, and the beadwire assembly 20 is braided and formed of layers 21, 22, 23 of wires helically wound about a central core 24. The stiffener 30 comprises a single ply which is folded to form two layers 32, 33. The bead (1) of Fig. 2 (not shown), is similar to the bead 1 of Fig. 1, but has a stiffener (30) formed of two separate plies (36, 37). The cords of the ply (36) are of greater diameter than, and inclined at a smaller angle to the circumferential direction than, the cords of the ply (37). The bead (1) of Fig. 3 (not shown), is similar to the bead 1 of Fig. 1, but has a beadwire assembly (2) of generally hexagonal crosssection.
Patent GB-892188-A (GB)
Title: Improvements in or relating to hydraulic control systems
Inventor: MARINDIN ROBERT
IPC: E02F9/20
Filed: 1960-04-01
Abstract: 892,188. Hydraulic apparatus. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN Ltd. Sept. 20, 1960 [April 1, 1960]. No. 11545/60. Class 69 (2). [Also in Group XXXI] An hydraulic control system for the power lift of a tractor comprises an hydraulic accumulator 10 which is supplied with fluid-pressure from a continuously driven pump 14 controlled by adjustable means 17, responsive to the pressure in the accumulator for regulating the effective output of the pump in such a manner that the operating pressure in the accumulator may be varied according to requirements. The output from the pump is connected by a line 16 to the accumulator consisting of a chamber 11 containing a gas or spring opposing the pump pressure in a chamber 9 which is connected by a line 6 to a valve 4 controlling the flow to a ram 1 and a tank 8 and by a line 22 to a plunger 17 bearing against the adjustment member 18 of the pump. The other side of the member 18 bears against a plunger 19 engaged by a spring 20, the compression of which can be adjusted by a member 21 movable by a screw 22. If small quantities of fluid are used in the system, the small drop in pressure in the accumulator permits the spring 20 to adjust the pump to low delivery while if large quantities of fluid are used, the larger drop in pressure permits the spring to adjust the pump towards maximum delivery. The ram 1 may be connected to the lift levers 2 which are mounted on a cross-shaft 3 of the tractor and have secured thereto a cam 35 engaging a roller 34 connected by a bell-crank lever 27, 28 and link 33 to the valve 4 which, in its neutral position blocks flow to and from the ram 1 and tank 8. The lever 27, 28 is also arranged to be actuated by a lever 24 of a mechanism responsive to draft. In order that increased pressure may be available in the system when it is desired to lift the levers 2 by a control lever 31 movable about a pivot 41 and provided with an arm 30 secured to the pivot 29 of the bell-crank lever 27, 28 and a second arm 40 connected by a link 39 to a lever 35, 38 which is pivoted at 36, movement of the lever 31 to lift the arms 2, moves the member 21 to increase the compression of the spring 20 and move the adjustment member 18 to increase the pump delivery and consequently the pressure in the accumulator. The system may supply other services 42, 43, 44, for example, the steering mechanism or other material handling equipment. The member 17, responsive to the accumulator pressure, may be mechanically connected to the piston of the accumulator.
Patent GB-561109-A (GB)
Title: An improved process for treating fish livers
IPC: C11B1/10
Filed: 1942-08-18
Abstract: 561,109. Extracting fish liver oils. NATIONAL OIL PRODUCTS CO. Aug. 18, 1942, No. 11595. Convention date, July 26, 1941. [Class 91] Oil is obtained from raw fish livers by extraction at elevated temperatures insufficient to destroy any substantial portion of the vitamin A and below the coagulation point of the protein i.e. about 50-60‹ C. with a mixture of an organic solvent for the oil and a water - miscible lower aliphatic. acid. The latter has a penetrating effect on the liver cells and enhances the release of the oil. Acetic acid is preferred but other acids specified comprise lactic, citric, propionic, and formic. Solid acids dissolve in the juice or water associated with the livers. The solvents specified comprise ethylene dichloride, trichloroethylene, hexane, dichloroethyl ether, ethyl ether, chloroform, acetone, petroleum ether, cyclohexane, and methyl cyclohexane. The proportion of acid in the solvent-acid mixture may range from 2 to 20 per cent by weight, preferably from 5 to 10 per cent. Vitamin A or D- containing fish livers are preferably treated. The livers may be preliminarily treated with the acid before addition of the solvent. The livers are treated in comminuted form. After treatment, the oilsolvent-acid mixture is separated off and any remaining oil removed mechanically or by solvent extraction using the previous solvents, acidified or not. The acid is removed from the liquid by washing with water or by distillation under vacuum, and the solvent is then separated such as by vacuum distillation under an atmosphere of nitrogen. Specification 414,717 is referred to.
Patent GB-129134-A (GB)
Title: Improvements in and relating to Submarine Torpedoes.
Inventor: BROWN CLYDE CECIL
IPC: B63G9/00
Filed: 1918-07-16
Abstract: 129,134. Brown, C. C. July 16, 1918. Mines, marine; torpedoes, locomotive.-Relates to torpedoes, which are released and set in motion along a buoyed and anchored horizontal cable, by the contact of a submarine vessel against the cable. According to the invention, improved means are provided for supporting, retaining, and releasing the torpedo. As shown, the cable 1 is stretched at a suitable depth between normallyvertical anchored stay cables 2, to which it is connected by spherical buoys 4, 4<1>, the required depth-line being maintained by means of detachable buoys 5 each of which is clipped to the cable by a doubleforked member 8 released as the nose of the travelling torpedo 11 cams upwards a releasing-lever 7, so that the buoy rises to the surface. The torpedo has a central tube 12 for passage along the cable. an explosive charge 13 at the head with contact firing arms or antennµ 14 secured by pivots 15 to the outer casing and having firing-pins extending into the explosive charge, and is propelled by an air motor 16 when the impact of a submarine S with the cable extends the spring 9 by which it is secured to the spherical buoy, thereby moving the torpedo relatively to a piston valve 17 which is anchored to the buoy by a cord 10. Compressed air thereupon passes to the motor, which rotates a stern-tube 21 carrying the propeller blades 23 so as to drive the torpedo along the cable, leaving the valve behind.
Patent GB-1211273-A (GB)
Title: Process for the recovery of nitrogen oxides
Inventor: BARR JAMES MICHAEL
IPC: C01B21/26
Filed: 1968-03-11
Abstract: 1,211,273. Recovery of nitrogen oxides. UNIVERSAL OIL PRODUCTS CO. 11 March, 1968 [13 March, 1967], No. 11683/68. Heading C1A. Nitrogen oxides are recovered from a gaseous feed mixture of oxygen, water and at least one of NO and NO 2  by contacting the gaseous mixture with a mordenite adsorbent, thereby oxidizing any NO present to NO 2  and adsorbing nitrogen oxides and water, and stripping at a higher temperature than the contacting temperature with a quantity of gas less than that of the feed mixture to give a more concentrated effluent, which may be contacted with water to give nitric acid. The mordenite may be synthetically prepared and either comprises particles held together with an acid resistant binder e.g. silica or spherical binderless mordenite particles or the hydrogen form thereof. The stripping may take place at 177-427‹ C. in an inert gaseous stream e.g. of air and the contacting may take place at 21-38‹ C. The process may be operated in two zones each functioning alternately as contacting and stripping zone.
Patent GB-1086557-A (GB)
Title: Improvements in or relating to hardened steel members and methods and apparatus for making the same
IPC: C21D1/06
Filed: 1965-03-19
Abstract: A longitudinal surface of an elongate metal member particularly the head of a steel rail is hardened by heating the surface to the austenite forming temperature to cause the heated surface to expand and form a camber, applying a force to the member while the surface is still hot to cause elongation of the heated surface and quenching the heated surface to form martensite so that <FORM:1086557/C6-C7/1> on colling to ambient temperature the member assumes a predetermined shape e.g. straightens. As shown, the heating assembly 131 may include burners 133 each having a plurality of evenly distributed ports and a manifold 139 for supplying a mixture of fuel gas and oxygen to the ports, and the quenching assembly 132 may be similarly arranged but with compressed air supplied to the ports.  Further cooling may be effected by air blowers.  The members e.g. steel rails 31 may be progressively advanced preferably end to end along a predetermined path, e.g. guided by shoes 151 above I-beams 53 and driven by rollers 54. The force may be applied to the member by a large roller 291 applying bottom pressure positioned between two top hold-down rollers 316 and 324, the pressure being applied by a fluid actuator 302.
Patent GB-1384279-A (GB)
Title: Turbine flowmeter
IPC: G01F15/00
Filed: 1972-03-14
Abstract: 1384279 Rotary fluid-flow meters TOKICO Ltd 14 March 1972 [20 March 1971] 11756/72 Heading F1F [Also in Division F2] In a gas meter of the axial-flow turbine type ball bearings 14a, 14b for the rotor 13 are fed  with oil from a reservoir 24 through a pipe 23, passages 25, 38 in fixed shafts 12a, 12b and a hole 40 in a collar 15, which has parts 15a, 15b tapered as shown to ensure that (owing to surface tension) the oil not only flows axially outwards thereacross but also is divided equally between the bearings. The oil flow is regulated by a needle valve 27 and can be observed through windows 29. A pipe 32 transmits gas-pressure to the reservoir from a region on the downstream side of a tail fairing 22, this pressure being greater than that at the hole 40. Surplus oil issuing from passages 21 is thrown on to the walls of a space 22a by a tubular slinger 19, whence the oil drains to a sump 34. To balance axial thrust on the rotor an intermediate portion of the pipe 32 may be connected by a further pipe to the sump, Fig. 3 (not shown) the pressure in the said region being thus transmitted to the space 22a as well as to the reservoir.
Patent GB-595163-A (GB)
Title: Improvements in precision measuring devices
IPC: G01B5/24
Filed: 1945-05-11
Abstract: 595,163. Linear-dimension ganges. KING, W. J. May 11, 1945. No. 11810. [Class 106 (ii)] [Also in Group XX] A precision measuring device for obtaining accurate setting of faces at an angle comprises a pair of discs or cylinders 1, 2 of known diameter diametrally slotted so as to be a sliding fit on a bar 4. The discs may be locked imposition by clamping plate 5 secured to the disc by screws 5a and finally clamped by a screw 5b which engages a metal pad 5c. When discs of different diameter are used, the distance between the centres of the discs is equal to the difference in radii multiplied by the cosecant of half the angle between the common tangents so the desired distance between the centres for any required angle may be calculated. The device may also be used for the measurement of inside and outside diameters by sliding one of the discs until the correct diameter is contacted. The discs are locked in position and the device may be transferred to a micrometer where the diameter may be read off.
Patent GB-1481011-A (GB)
Title: Fluid-cushion vehicles
IPC: B60V3/02
Filed: 1975-03-17
Abstract: 1481011 Air cushion vehicles AIR CUSHION EQUIPMENT (1976) Ltd 17 March 1975 [18 March 1974] 11819/74 Heading B7K An air cushion vehicle, in the embodiment a load pallet, is supported at rest by four load pads 10 and, in operation, by cushions 3 beneath the pads each enclosed by a toroidal skirt 5 secured at 6 to the body 4. The body and skirt are apertured respectively at 11 and 12 whereby the skirt may be inflated and the cushion formed by air flows indicated by arrows. To reduce wear on the skirt by contact with the ground 2, the skirt is enclosed by a profiled toroidal sheet 15 wrapped round at least the bottom of the skirt so as to enshroud said skirt bottom without being attached thereto, the sheet having an annular opening 16 to enable it to be fitted over the skirt 5 and a cutout 19 to allow passage of air between apertures 11 and 12, the edges of opening 16 being reinforced by beads 17 and 18. In an alternative embodiment (Fig. 6, not shown) an annular wear-resistant sheet envelopes the lower face of the skirt and is attached at its spaced edges to the body of the vehicle.
Patent GB-370201-A (GB)
Title: Improvements in teeth-cleaning appliances
IPC: A46B1/00
Filed: 1931-04-22
Abstract: 370,201. Teeth-cleaning appliances brushes. VARGA, I., 14, Kossuth Lajos- Ucca, Budapest. April 22, 1931, No. 11906. [Class 131.] A tooth - cleaning appliance comprises a handle 1 carrying a block 2 of rubber or a composition thereof provided with a num ber of transverse rows 3 of longitudinal ribs formed with concave upper edges, transverse ribs 4, also having concave upper edges, being situated between the transverse rows of ribs. The ribs 4 do not extend the full width of the block 2 and reach above the top of the longitudinal ribs. The faces of the ribs 4 may be fluted or grooved. The outer longitudinal ribs 3<1> are arc-shaped. A wedge-shaped longitudinal rib 5 is provided at the front end of the block 2 and extends above the upper edges of the transverse ribs 4.
Patent GB-300464-A (GB)
Title: Improvements in or relating to processes of curing cementing materials
IPC: C04B40/04
Filed: 1928-04-23
Abstract: 300,464. Jackson, L. Mellersh-, (Barber Asphalt Co.). April 23, 1928. Waterproofing buildings and structures.-Concrete, after it is laid, is sprayed with a waterexternal-phase bituminous emulsion, such as that known as cold repair cement, so that when the water has evaporated, an impervious adherent film is formed which prevents the evaporation of water from the concrete during the setting period.
Patent GB-1248961-A (GB)
Title: Improvements in and relating to a system and apparatus for measuring the optical transmittance of the atmosphere
Inventor: LONGFORD CHARLES GEOFFREY
IPC: G01N21/53
Filed: 1968-11-19
Abstract: 1,248,961. Measuring visibility photoelectrically. ALLEN, LONGFORD & ASSOCIATES Ltd. Feb. 18, 1970 [Nov. 19, 1968, March 6, 1969], Nos. 54866/68 and 11967/69. Heading G1A. Visibility is determined by providing a pair of light detection devices D1, D2 each responsive to light from two light sources S1, S2 whose intensity varies at the same frequency but in a different phase, A sin wt, B sin (wt + a), so that the output signals of the detection devices can be analyzed to provide a signal representing the intensity of the light sources and the transmittivity of the path between the detectors and sources. Each unit 10, 12 of the system consists of a prefocused filament lamp 22 which transmits light through lens 20 to the remote unit and through aperture 25 in wall 19 to silicon photo-cell 24 which also receives light from the remote unit through lens 21. In order to equalize the effective amount of light received under clear conditions from the remote unit source and lamp 22 the photo-cell 24 is rotatable. Also enclosed within the housing is a local amplifier mounted on printed circuit board 28 and a heater 30B. The units are trunnion mounted on rigid stands and are aligned by means of telescopes 11. In operation the output of an oscillator is clipped to provide clock pulses which are supplied to a frequency divider circuit which produces two trains of low frequency pulses phase shifted by 120 degrees to supply the lamp driver circuits. The photo-cells will produce square wave outputs which after amplification are fed to a phase sensing and gating circuit 16 which supplies meter 52. The circuit parameters are selected so that 1 mA is supplied to the meter when the squarewaves are in phase and zero current when 120 degrees out of phase corresponding to a visibility of 100% and zero respectively.